What is Laceration Wound?
A laceration is a wound that occurs when skin, tissue, and/or muscle is torn or cut open. Lacerations may be deep or shallow, long or short, and wide or narrow. Most lacerations are the result of the skin hitting an object, or an object hitting the skin with force. Laceration repair is the act of cleaning, preparing, and closing the wound.
Minor lacerations (shallow, small, not bleeding, and clean) may not require medical attention. Antibiotic ointment and a bandage may be all that is needed. However, most lacerations do require repair.
Cleaning and preparing a laceration for repair is crucial for preventing infection and reducing the appearance of scaring. Cleaning not only washes away dirt, but also removes the germs that could trigger infection. Cleaning is done in the same manner regardless of the technique that will be used for wound closure. Preparation is done to even out jagged edges so that scarring may be less noticeable. Preparation is done as needed.
Sutures are used for wounds that are deep, bleeding, have jagged edges, or have fat or muscle exposed. Iodine is applied to the wound edges, and to the skin surrounding the wound. A surgical drape may be positioned over the wound, and taped to the skin so it does not move around (keeps the area sterile).
If a laceration is deep and underlying tissue or muscle is also lacerated, stitches may be needed under the skin before the wound can be closed. This will rejoin muscle and tissue layers. The stitches used under the skin are absorbed by the body, and do not need to be removed.
Types of Open Wound
- Incisions or incised wounds, caused by a clean, sharp-edged object such as a knife, a razor or a glass splinter.
- Lacerations, irregular tear-like wounds caused by some blunt trauma. Lacerations and incisions may appear linear (regular) or stellate (irregular). The term laceration is commonly misused in reference to incisions.
- Abrasions (grazes), superficial wounds in which the topmost layer of the skin (the epidermis) is scraped off. Abrasions are often caused by a sliding fall onto a rough surface.
- Puncture wounds, caused by an object puncturing the skin, such as a nail or needle.
- Penetration wounds, caused by an object such as a knife entering and coming out from the skin .
- Gunshot wounds, caused by a bullet or similar projectile driving into or through the body. There may be two wounds, one at the site of entry and one at the site of exit, generally referred to as a “through-and-through.”
Treatment for Wound
The treatment depends on the type, cause, and depth of the wound as well as whether other structure beyond the skin are involved. Treatment of recent lacerations involves examination, cleaning, and closing the wound. If the laceration occurred some time ago it may be allowed to heal by secondary intention due to the high rate of infection with immediate closure. Minor wounds like bruises will heal on their own with skin discoloration usually disappears in 1–2 weeks. Abrasions which are wounds with intact skin usually require no active treatment except keeping the area clean with soap and water. Puncture wounds may be prone to infection depending on the depth of penetration. The entry of puncture wound is left open to allow for bacteria or debris to be removed from inside.
Cleaning of Wound
For simple lacerations cleaning can be accomplished using a number of different solutions including tap water, sterile saline solution, or antiseptic solution. Infection rates may be lower with the use of tap water in regions where water quality is high. Evidence for the effectiveness of any cleaning of simple wound however is limited.
Most clean open wounds do not require any antibiotics unless the wound is contaminated or the bacterial cultures are positive. Excess use of antibiotics only leads to resistance and side effects. All open wounds should be cleaned at least twice a day with warm water and soap. Once the wound is cleaned, it should be covered with moist gauze. This should be followed by application of dry gauze and then the wound covered with a bandage. The purpose of a wet to dry dressing allows the bandage to adhere to dead tissue performing a mechanical debridement when removed.This allows new healthy skin to grow and prevents debris from collecting. When the wound is clean, it may be closed with a skin graft. No wound is ever closed if it is suspected to be infected
Closure of Wound
Incisions caused by a knife or a sharp object need to be thoroughly cleaned and the edges trimmed. If the wounds are fresh and less than 12 hours old, they can be closed with sutures or staples. Any wound which is more than 24 hours old should be suspected to be contaminated and not closed completely. Only the deeper tissues can be approximated and the skin should be left open. If closure of a wound is decided upon a number of techniques can be used. These include bandages, a cyanoacrylate glue, staples, and sutures. Absorbable sutures have the benefit over non absorbable sutures of not requiring removal. They are often preferred in children.
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